MCI_MIXSETUP Parameter - ulParam1

ulParam1 (ULONG)

This parameter can contain any of the following flags:

MCI_NOTIFY

A notification message is posted to the window specified in the hwndCallback field of the data structure identified by pParam2 when the action indicated by this message is completed.
MCI_WAIT
Control is not returned until the action indicated by this message is completed.
MCI_MIXSETUP_INIT
Initializes the mixer for the correct mode according to the value specified in the ulFormatMode field of MCI_MIXSETUP_PARMS.
MCI_MIXSETUP_DEINIT
Deinitializes the mixer.
MCI_MIXSETUP_QUERYMODE
Queries a device to see if a specific mode is supported.

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